Mutsari: Site Editor Publish Nkarhi: 2024-07-15 Masungulo: Ndhawu
Tibetiri ta lithium-ion ti tsakeriwa eka ku tala ka tona ka matimba ya le henhla, vutomi byo leha bya xirhendzevutana, na mpimo wa le hansi wa ku ti humesa. Ku twisisa ndlela leyi tibetiri leti ti tirhaka ha yona i swa nkoka swinene.
Swiphemu swa xisekelo swa betri ya lithium-ion swi katsa anode, cathode, electrolyte, na separator. Swilo leswi swi tirha swin’we ku hlayisa na ku humesa eneji hi ndlela leyinene. Anode hi ntolovelo yi endliwa hi graphite, kasi cathode yina oxide ya nsimbi ya lithium. Electrolyte i lithium salt solution eka organic solvent, naswona separator i membrane yo olova leyi sivelaka ti short circuits hiku hlayisa anode na cathode swihambana.
Maendlelo ya charge na discharge ya ti lithium-ion batteries i ya nkoka eka matirhelo ya tona. Maendlelo lawa ya katsa ku famba ka ti lithium ions exikarhi ka anode na cathode hiku tirhisa electrolyte.
Loko betri ya lithium-ion yi chaja, ti- ion ta lithium ti suka eka cathode ti ya eka anode. Ku famba loku ku humelela hikuva xihlovo xa eneji ya gezi xa le handle, xi tirhisa voltage ku tsemakanya titheminali ta betri. Voltage leyi yi fambisa ti lithium ions hi electrolyte kuya eka anode, laha ti hlayisiwaka kona. Endlelo ro chaja ri nga hambanisiwa hi switeji swimbirhi leswikulu: xiphemu xa constant current (CC) na xiphemu xa constant voltage (CV).
Hi nkarhi wa CC phase, steady current yi phakeriwa eka betri, leswi endlaka leswaku voltage yi tlakuka hakatsongotsongo. Loko betri yi fika eka mpimo wa yona lowukulu wa voltage, chajara yi cincela eka xiyenge xa CV. Eka xiphemu lexi, voltage yi khomiwa yi nga cinci, naswona current yi hunguteka hakatsongo-tsongo ku kondza yi fika eka nhlayo yitsongo. Eka xiyimo lexi, betri yi chajiwe hi ku helela.
Ku humesa betri ya lithium-ion swikatsa endlelo ro tlhelela endzhaku, laha ti lithium ions ti sukaka eka anode ti tlhelela eka cathode. Loko betri yi hlanganisiwe ni xitirhisiwa, xitirhisiwa lexi xi koka matimba ya gezi eka betri. Leswi swi endla leswaku ti- ion ta lithium ti huma eka anode ivi ti famba hi electrolyte ti ya eka cathode, leswi endlaka leswaku ku va ni gezi leri nyikaka xitirhisiwa lexi matimba.
Ti khemikhali ta reactions hi nkarhi wa discharge kahle kahle i reverse ya leti hi nkarhi wa charging. Ti lithium ions intercalate (insert) eka cathode material, kasi ti electrons ti khuluka hi xirhendzevutani xale handle, tinyika matimba eka xitirhisiwa lexi hlanganisiweke.
Ti reactions leti ti kombisa ku hundziseriwa ka ti lithium ions na ku khuluka loku fambelanaka ka ti electrons, leswi nga swa nkoka eka matirhelo ya betri.
Tibetiri ta lithium-ion ti tiveka hi swihlawulekisi swa tona swo karhi, swo tanihi ku tala ka matimba ya le henhla, ku tihambanisa ka le hansi ni vutomi byo leha bya xirhendzevutana. Swihlawulekisi leswi swi endla leswaku swiva kahle eka switirhisiwa laha matimba lawa ya tshamaka nkarhi woleha yanga ya nkoka. Timetriki to hlayanyana ta nkoka ta matirhelo ti tirhisiwa ku kambela tibetiri ta lithium-ion:
Ku tsindziyela ka eneji: Ku pima nhlayo ya eneji leyi hlayisiweke eka vholumo kumbe ntiko lowu nyikiweke.
Vutomi bya Xirhendzevutani: Swi kombisa nhlayo ya swirhendzevutani swa charge-discharge leswi betri yi nga swi endlaka loko vuswikoti bya yona byi nga si hunguteka swinene.
C-rate: Yi hlamusela mpimo lowu betri yi chajiwaka kumbe ku humesiwa ha wona loko yi pimanisiwa na vuswikoti bya yona lebyikulu.
Ku veka tihlo eka swirhendzevutani swa charge na ku humesiwa ka tibetiri ta lithium-ion i swa nkoka swinene eka ku tiyisisa vutomi bya tona byo leha na vuhlayiseki. Ku chaja ngopfu kumbe ku humesa hi vuenti swinga endla leswaku kuva na ku onhaka ka betri, kuhunguteka ka vuswikoti, hambi kuri makhombo ya vuhlayiseki yofana na thermal runaway. Ku veka tihlo loku humelelaka swi pfuneta eka ku hlayisa matirhelo lamanene na ku engetela nkarhi wa vutomi bya betri. Switshuxo swa vulawuri bya xiyimo xa le henhla ku fana na . DFUN Centralized Battery Monitoring Cloud System yi tlanga xiave xa nkoka eku vekeni tihlo na ku lawula endlelo ra ku chaja na ku humesa. Endlelo leri ri rhekhoda xiyimo lexi heleleke xa ku chaja na ku humesa, ri hlayela vuswikoti bya xiviri, naswona ri tiyisisa leswaku betri hinkwayo yi tshama yi ri leyi tirhaka kahle naswona yi hlayisekile ku yi tirhisa.
